Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:48:20 2013 Optimize a model with 3200 rows, 32600 columns and 70050 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.35s Presolved: 3100 rows, 32450 columns, 64900 nonzeros Variable types: 30000 continuous, 2450 integer (2450 binary) Root relaxation: objective 2.198499e+05, 3765 iterations, 0.17 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 219849.939 0 2 - 219849.939 - - 0s 0 0 219865.583 0 2 - 219865.583 - - 0s 0 0 219875.927 0 2 - 219875.927 - - 0s 0 0 219882.766 0 2 - 219882.766 - - 0s 0 0 219886.320 0 2 - 219886.320 - - 0s 0 0 219887.327 0 2 - 219887.327 - - 1s 0 0 219889.954 0 2 - 219889.954 - - 1s 0 0 219891.899 0 2 - 219891.899 - - 1s 0 0 219894.389 0 2 - 219894.389 - - 1s 0 0 219894.389 0 2 - 219894.389 - - 1s 0 0 219894.389 0 2 - 219894.389 - - 1s 0 0 219894.389 0 2 - 219894.389 - - 1s 0 0 219894.746 0 2 - 219894.746 - - 1s 0 0 219894.807 0 2 - 219894.807 - - 1s 0 0 219895.372 0 2 - 219895.372 - - 1s 0 0 219899.801 0 2 - 219899.801 - - 2s 0 0 219900.614 0 2 - 219900.614 - - 2s 0 0 219900.614 0 2 - 219900.614 - - 2s 0 0 219900.721 0 2 - 219900.721 - - 2s 0 0 219900.721 0 2 - 219900.721 - - 2s 0 0 219900.721 0 2 - 219900.721 - - 2s 0 2 219902.577 0 2 - 219902.577 - - 3s 44 46 220585.351 44 4 - 220268.697 - 18.1 5s 219 221 221502.029 219 2 - 220268.697 - 16.8 10s 417 419 222306.435 417 1 - 220268.697 - 15.3 15s * 468 160 468 222622.35999 220268.697 1.06% 15.0 16s 611 272 220398.449 25 2 222622.360 220315.862 1.04% 15.9 20s 721 328 220692.795 76 2 222622.360 220692.795 0.87% 34.7 25s * 913 290 217 222024.82244 220979.177 0.47% 34.9 29s 952 277 221687.922 256 1 222024.822 220979.177 0.47% 34.1 30s 1394 280 221496.419 33 2 222024.822 221201.424 0.37% 29.6 35s 1894 497 221873.159 39 2 222024.822 221320.684 0.32% 26.9 40s 2269 584 222003.291 36 1 222024.822 221404.583 0.28% 26.4 46s * 2575 613 37 222016.49063 221446.834 0.26% 26.1 48s * 2703 592 37 221990.70522 221456.652 0.24% 25.6 49s 2706 591 221771.024 42 2 221990.705 221457.539 0.24% 25.6 50s 3195 612 221872.260 40 1 221990.705 221517.130 0.21% 25.8 55s 3616 603 221589.720 74 1 221990.705 221573.652 0.19% 26.1 60s 4180 575 221969.723 91 1 221990.705 221634.799 0.16% 26.5 65s 4678 507 221925.225 37 1 221990.705 221689.781 0.14% 27.1 70s 4959 459 221939.042 38 1 221990.705 221720.654 0.12% 27.5 75s * 5268 386 35 221990.67135 221764.261 0.10% 27.8 78s 5446 328 221832.026 45 1 221990.671 221804.062 0.08% 28.0 80s 5803 139 cutoff 60 221990.671 221918.238 0.03% 28.5 85s Cutting planes: Gomory: 2 Flow cover: 8 Explored 5932 nodes (172652 simplex iterations) in 86.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.219906713538e+05, best bound 2.219696601421e+05, gap 0.0095%